Introduction

ImpulseOSD is fluent in Tramp Telemetry as well as SmartAudio - just like your KISS or BF FC. You can change channels, select different power levels, wake your VTX out of pit mode with PIT BOOT and monitor your VTX status. ImpulseOSD makes sure your VTX operates at the channel/band/power you have selected and stays in communication with your VTX. IRC Wand users have special options to give the wand priority over the OSD - so the OSD does not override the channel you had previously selected with the wand.

ATTENTION: We strongly recommend to connect your VTX Telemetry/SmartAudio to your ImpulseOSD hardware instead of your FC to take full advantage of all features available in ImpulseOSD (such as PIT BOOT and BEACON MODE) - and last but not least for best video quality.

Auto VTX detection

ImpulseOSD auto-detects which VTX you have connected. It may take up to 40 seconds the first time you connect a VTX for it to detect - after it has been detected once it will find it within a few seconds after your next plugin.

There is no need to configure anything!

Default channel and band: F8

Note: If your KISS FC still has Tramp/SmartAudio configured ImpulseOSD will take the channel settings from the KISS FC. Read about LUA support below for details!

Basic VTX settings

Enter the menu (yaw left while disarmed for more than two seconds) and select VTX from the Main Menu.

• POWER DISARMED: VTX power level while the quad is disarmed.
• POWER ARMED: VTX power level while the quad is armed.
• BAND: Current band selected.
• CHANNEL: Current channel selected (and frequency)
• ADVANCED Advanced VTX settings, explained further below.
• SET+EXIT Sets the new settings above. ATTENTION: This may result in video loss since you may have changed your channel/band. Please adjust accordingly on your goggle.
• BACK+CANCEL This will discard any settings you made in this menu. Please note that the behavior for the VTX menu is different from the other menus that remember changes.

Advanced VTX settings

ImpulseOSD offers advanced VTX settings to keep your VTX as cool as possible and increase its efficiency and lifetime. PIT BOOT and BEACON MODE are two concepts we have introduced to achieve these goals.

PIT BOOT

PIT BOOT enables you to start your VTX in pit mode - and wake it up from pit mode with the flick of a switch on your radio. If you have e.g. a 3 position switch on your radio for arming your quad you can set the middle position to wake your VTX from PIT BOOT.

NOTE: PIT BOOT only activates pit mode when you plug in. Once you leave pit mode by flipping your configured switch on your radio it will not enter pit mode again if you flip your switch back. PIT BOOT is disabled by default and must be enabled by selecting the appropriate AUX channel and range first.

ATTENTION: Arming your quad will always disable pit mode - so if you have selected the wrong AUX channel by accident just arm your quad and disarm. DO NOT DO THIS ON YOUR DESK UNLESS YOU HAVE YOUR PROPS REMOVED. You have been warned.

PIT MODE ON A SWITCH

Note: This only works for Tramp and SmartAudio 2.1 devices

Simply set 0mW for the low power setting and assign a switch to the VTX power setting (see VTX power via AUX below).

BEACON MODE

BEACON MODE is trying to save your VTX and your battery from draining while you are in a dire situation: for whatever reason you have crashed your quad in a spot which will take you some time to get to. BEACON MODE will activate 60 seconds after a failsafe has been detected - and either turn your quad into pit mode (Tramp) or lowest power level (SmartAudio) for 60 seconds. Then it will turn the power up to the maximum level you have configured for 15 seconds - acting like a beacon - and then start the cycle all over again.

NOTE: If you have any LEDs connected to ImpulseOSD they will be turned off during BEACON MODE and start flashing in bright white during the 15 second beacon period.

BEACON MODE is turned off by default.

VTX power via AUX

Usually the arm switch is used to switch between low and high power settings of your VTX. If you would like to configure the power used via a separate switch (AUX channel) from your radio. The low and high power setting will then only be set via the switch position and ignore arming and disarming.

Adjusting Advanced VTX settings

Select ADVANCED while inside the VTX menu

• PIT BOOT CHAN Select the AUX channel you wish to use for PIT BOOT. Please make sure you have that configured on your radio first!
• PIT BOOT RANGE Select the range where the VTX should wake up from pit mode. Please make sure you have that configured on your radio first!
• GPS HOME BOOT If you have a GPS connected and PIT BOOT configured it will wake up your VTX after the home position has been initialized by ImpulseOSD.
• VTX MAX POWER If you leave this as 0mW ImpulseOSD will assume 600mW for Tramp Telemetry and 800mW for SmartAudio. Some VTX using Tramp Telemetry or SmartAudio use different maximum power levels, so you can set them here. Example: Unify Pro HV SE: set to 1000mW. Unify Nano (not the Pro32!): 50mW. Don't forget to double check your power settings after you changed the VTX max power!
• CHAN. OVERRIDE This is ON by default and should only be turned off if you prefer to use a Wand for your Tramp. Turning this off will prevent ImpulseOSD to override the channel set by the Wand prior.
• POWER OVERRIDE ON by default, this setting is similar to CHAN. OVERRIDE and is specific to Wand users that do not want ImpulseOSD to change the power levels selected by the Wand by arming or disarming the quad.
• BEACON MODE OFF by default, turn it on to turn your quad into a shiny beacon!
• STICKY HIGH PWR This is useful if you want to keep your VTX in the high power setting - after you have armed your quad ONCE. If you e.g. choose to land somewhere further away from you and disarm it will stay in the high power setting so your video stays nice and strong! Downside: If you get stuck in e.g. a tree it will roast your VTX and drain your battery.
• VTX STATUS Shows various status information received by VTX telemetry. Tramp users can see the current temperature and actual power level of their VTX as well as the frequency it is transmitting at according to Telemetry data. Unify users can see the frequency and power it is configured at - according to SmartAudio data.

LUA support

If your KISS FC still has Tramp/SmartAudio/Dummy VTX configured, it will use the channel/band/power configured in the KISS GUI. ImpulseOSD synchronizes with KISS FC: Any channel/band/power change made in ImpulseOSD will be saved on the KISS FC as well - and vice versa. This enables you to change VTX settings via LUA or KISS GUI.

Our recommendation is to use Dummy VTX if you wish to have LUA support. Do not leave it on SmartAudio, that can cause delays with the ESC telemetry.

BF users: There is not synchronization at this point (which does not mean it won't be there in the future ;)